diff options
author | Glenn L McGrath <bug1@ihug.co.nz> | 2002-05-29 17:45:34 +0400 |
---|---|---|
committer | Glenn L McGrath <bug1@ihug.co.nz> | 2002-05-29 17:45:34 +0400 |
commit | a94a06a38eba7665f20c8e67cf2c424cab9ee43c (patch) | |
tree | 24fa935f9cb105f6871168d05f163620ef3cca80 /archival/dpkg.c | |
parent | 1d4ef2a9e9c8d8b448bcce7dea36220e220e137b (diff) |
Patch from Randolfe Averty to fixup package conflict checks, cleanup some memory leaks and reorganise dependency checking.
Some further memory leaks fixed by me.
Diffstat (limited to 'archival/dpkg.c')
-rw-r--r-- | archival/dpkg.c | 198 |
1 files changed, 124 insertions, 74 deletions
diff --git a/archival/dpkg.c b/archival/dpkg.c index 6dee43f50..6cab77f38 100644 --- a/archival/dpkg.c +++ b/archival/dpkg.c @@ -487,19 +487,17 @@ void add_split_dependencies(common_node_t *parent_node, const char *whole_line, void free_package(common_node_t *node) { - int i; - if (node != NULL) { + unsigned short i; + if (node) { for (i = 0; i < node->num_of_edges; i++) { - if (node->edge[i] != NULL) { + if (node->edge[i]) { free(node->edge[i]); } } - if (node->edge != NULL) { + if (node->edge) { free(node->edge); } - if (node != NULL) { - free(node); - } + free(node); } } @@ -905,9 +903,8 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count) int state_status; int state_flag; int state_want; - unsigned int status_package_num; int i = deb_start; - int j, k; + int j; /* Check for conflicts * TODO: TEST if conflicts with other packages to be installed @@ -948,38 +945,49 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count) } /* Check conflicts */ - for (i = 0; i < conflicts_num; i++) { - /* Check for conflicts */ - for (j = 0; j < STATUS_HASH_PRIME; j++) { - if (status_hashtable[j] == NULL) { - continue; - } - state_flag = get_status(j, 2); - state_status = get_status(j, 3); - if ((state_status != search_name_hashtable("installed")) - && (state_flag != search_name_hashtable("want-install"))) { - continue; - } - status_package_num = status_hashtable[j]->package; - for (k = 0; k < package_hashtable[status_package_num]->num_of_edges; k++) { - const edge_t *package_edge = package_hashtable[status_package_num]->edge[k]; - if (package_edge->type != EDGE_CONFLICTS) { - continue; - } - if (package_edge->name != package_hashtable[conflicts[i]]->name) { - continue; + i = 0; + while (deb_file[i] != NULL) { + const common_node_t *package_node = package_hashtable[deb_file[i]->package]; + int status_num = 0; + status_num = search_status_hashtable(name_hashtable[package_node->name]); + + if (get_status(status_num, 3) == search_name_hashtable("installed")) { + i++; + continue; + } + + for (j = 0; j < package_node->num_of_edges; j++) { + const edge_t *package_edge = package_node->edge[j]; + const unsigned int package_num = + search_package_hashtable(package_edge->name, + package_edge->version, package_edge->operator); + + if (package_edge->type == EDGE_CONFLICTS) { + int result = 0; + if (package_hashtable[package_num] != NULL) { + status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]); + state_status = get_status(status_num, 3); + state_flag = get_status(status_num, 1); + + result = (state_status == search_name_hashtable("installed")) || + (state_flag == search_name_hashtable("want-install")); + + if (result) { + result = test_version(package_hashtable[deb_file[i]->package]->version, + package_edge->version, package_edge->operator); + } } - /* There is a conflict against the package name - * check if version conflict as well */ - if (test_version(package_hashtable[deb_file[i]->package]->version, - package_edge->version, package_edge->operator)) { - error_msg_and_die("Package %s conflict with %s", - name_hashtable[package_hashtable[deb_file[i]->package]->name], - name_hashtable[package_hashtable[status_package_num]->name]); + + if (result) { + error_msg_and_die("Package %s conflicts with %s", + name_hashtable[package_node->name], + name_hashtable[package_edge->name]); } } } - } + i++; + } + /* Check dependendcies */ i = 0; @@ -987,40 +995,58 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count) const common_node_t *package_node = package_hashtable[deb_file[i]->package]; int status_num = 0; + status_num = search_status_hashtable(name_hashtable[package_node->name]); + state_status = get_status(status_num, 3); + state_want = get_status(status_num, 1); + + if (state_status == search_name_hashtable("installed")) { + i++; + continue; + } + for (j = 0; j < package_hashtable[deb_file[i]->package]->num_of_edges; j++) { const edge_t *package_edge = package_node->edge[j]; unsigned int package_num; package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator); - if (package_hashtable[package_num] == NULL) { - error_msg_and_die("Dependency checking failed for package %s\nNOTE: This may be due to busybox dpkg's inability to handle the Provides field, you may avoid dependency checking using the \"-F depends\" option ", name_hashtable[package_edge->name]); - } - status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]); - state_status = get_status(status_num, 3); - state_want = get_status(status_num, 1); switch (package_edge->type) { case(EDGE_PRE_DEPENDS): - case(EDGE_OR_PRE_DEPENDS): + case(EDGE_OR_PRE_DEPENDS): { + int result=1; /* It must be already installed */ /* NOTE: This is untested, nothing apropriate in my status file */ - if ((package_hashtable[package_num] == NULL) || (state_status != search_name_hashtable("installed"))) { + if (package_hashtable[package_num] != NULL) { + status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]); + state_status = get_status(status_num, 3); + state_want = get_status(status_num, 1); + result = (state_status != search_name_hashtable("installed")); + } + + if (result) { error_msg_and_die("Package %s pre-depends on %s, but it is not installed", name_hashtable[package_node->name], name_hashtable[package_edge->name]); } break; + } case(EDGE_DEPENDS): - case(EDGE_OR_DEPENDS): + case(EDGE_OR_DEPENDS): { + int result=1; + if (package_hashtable[package_num] != NULL) { + status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]); + state_status = get_status(status_num, 3); + state_want = get_status(status_num, 1); + result=(state_status != search_name_hashtable("installed")) && (state_want != search_name_hashtable("want-install")); + } /* It must be already installed, or to be installed */ - if ((package_hashtable[package_num] == NULL) || - ((state_status != search_name_hashtable("installed")) && - (state_want != search_name_hashtable("want_install")))) { + if (result) { error_msg_and_die("Package %s depends on %s, but it is not installed, or flaged to be installed", name_hashtable[package_node->name], name_hashtable[package_edge->name]); } break; + } } } i++; @@ -1032,7 +1058,7 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count) char **create_list(const char *filename) { FILE *list_stream; - char **file_list = xmalloc(sizeof(char *)); + char **file_list = NULL; char *line = NULL; int length = 0; int count = 0; @@ -1040,12 +1066,11 @@ char **create_list(const char *filename) /* dont use [xw]fopen here, handle error ourself */ list_stream = fopen(filename, "r"); if (list_stream == NULL) { - *file_list = NULL; - return(file_list); + return(NULL); } + while (getline(&line, &length, list_stream) != -1) { - /* +2 as we need to include space for the terminating NULL pointer */ - file_list = xrealloc(file_list, sizeof(char *) * (length + 2)); + file_list = xrealloc(file_list, sizeof(char *) * (count + 2)); chomp(line); file_list[count] = xstrdup(line); count++; @@ -1119,20 +1144,37 @@ int run_package_script(const char *package_name, const char *script_type) return(result); } -void all_control_list(char **remove_files, const char *package_name) +char **all_control_list(const char *package_name) { - const char *all_extensions[11] = {"preinst", "postinst", "prerm", "postrm", + const char *extensions[11] = {"preinst", "postinst", "prerm", "postrm", "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL }; - int i; + unsigned short i = 0; + char **remove_files; /* Create a list of all /var/lib/dpkg/info/<package> files */ - for(i = 0; i < 10; i++) { - remove_files[i] = xmalloc(strlen(package_name) + strlen(all_extensions[i]) + 21); - sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_extensions[i]); + remove_files = malloc(sizeof(char *) * 11); + while (extensions[i]) { + remove_files[i] = xmalloc(strlen(package_name) + strlen(extensions[i]) + 21); + sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, extensions[i]); + i++; } remove_files[10] = NULL; + + return(remove_files); } +void free_array(char **array) +{ + + if (array) { + unsigned short i = 0; + while (array[i]) { + free(array[i]); + i++; + } + free(array); + } +} /* This function lists information on the installed packages. It loops through * the status_hashtable to retrieve the info. This results in smaller code than @@ -1203,10 +1245,8 @@ void remove_package(const unsigned int package_num) /* Some directories cant be removed straight away, so do multiple passes */ while (remove_file_array(remove_files, exclude_files)); - - /* Create a list of all /var/lib/dpkg/info/<package> files */ - remove_files = xmalloc(sizeof(char *) * 11); - all_control_list(remove_files, package_name); + free_array(exclude_files); + free_array(remove_files); /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */ exclude_files = xmalloc(sizeof(char*) * 3); @@ -1215,7 +1255,12 @@ void remove_package(const unsigned int package_num) sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name); exclude_files[2] = NULL; + /* Create a list of all /var/lib/dpkg/info/<package> files */ + remove_files = all_control_list(package_name); + remove_file_array(remove_files, exclude_files); + free_array(remove_files); + free_array(exclude_files); /* rename <package>.conffile to <package>.list */ rename(conffile_name, list_name); @@ -1242,16 +1287,18 @@ void purge_package(const unsigned int package_num) sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name); remove_files = create_list(list_name); - exclude_files = xmalloc(1); + exclude_files = xmalloc(sizeof(char*)); exclude_files[0] = NULL; /* Some directories cant be removed straight away, so do multiple passes */ while (remove_file_array(remove_files, exclude_files)); + free_array(remove_files); /* Create a list of all /var/lib/dpkg/info/<package> files */ - remove_files = xmalloc(sizeof(char *) * 11); - all_control_list(remove_files, package_name); + remove_files = all_control_list(package_name); remove_file_array(remove_files, exclude_files); + free_array(remove_files); + free(exclude_files); /* run postrm script */ if (run_package_script(package_name, "postrm") == -1) { @@ -1284,7 +1331,7 @@ void unpack_package(deb_file_t *deb_file) } /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */ - info_prefix = (char *) xmalloc(sizeof(package_name) + 20 + 4 + 2); + info_prefix = (char *) xmalloc(strlen(package_name) + 20 + 4 + 2); sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name); deb_extract(deb_file->filename, stdout, (extract_quiet | extract_control_tar_gz | extract_all_to_fs | extract_unconditional), info_prefix, NULL); @@ -1328,7 +1375,7 @@ void configure_package(deb_file_t *deb_file) set_status(status_num, "installed", 3); } -extern int dpkg_main(int argc, char **argv) +int dpkg_main(int argc, char **argv) { deb_file_t **deb_file = NULL; status_node_t *status_node; @@ -1388,8 +1435,9 @@ extern int dpkg_main(int argc, char **argv) } /* Read arguments and store relevant info in structs */ - deb_file = xmalloc(sizeof(deb_file_t)); while (optind < argc) { + /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */ + deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2)); deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t)); if (dpkg_opt & dpkg_opt_filename) { deb_file[deb_count]->filename = xstrdup(argv[optind]); @@ -1408,7 +1456,6 @@ extern int dpkg_main(int argc, char **argv) if ((dpkg_opt & dpkg_opt_unpack) || (dpkg_opt & dpkg_opt_install)) { status_node = (status_node_t *) xmalloc(sizeof(status_node_t)); status_node->package = deb_file[deb_count]->package; - /* Try and find a currently installed version of this package */ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]); /* If no previous entry was found initialise a new entry */ @@ -1416,10 +1463,10 @@ extern int dpkg_main(int argc, char **argv) (status_hashtable[status_num]->status == 0)) { /* reinstreq isnt changed to "ok" until the package control info * is written to the status file*/ - status_node->status = search_name_hashtable("install reinstreq not-installed"); + status_node->status = search_name_hashtable("want-install reinstreq not-installed"); status_hashtable[status_num] = status_node; } else { - status_hashtable[status_num]->status = search_name_hashtable("install reinstreq installed"); + status_hashtable[status_num]->status = search_name_hashtable("want-install reinstreq not-installed"); } } } @@ -1488,6 +1535,7 @@ extern int dpkg_main(int argc, char **argv) free(deb_file[i]->filename); free(deb_file[i]); } + free(deb_file); for (i = 0; i < NAME_HASH_PRIME; i++) { @@ -1497,7 +1545,9 @@ extern int dpkg_main(int argc, char **argv) } for (i = 0; i < PACKAGE_HASH_PRIME; i++) { - free_package(package_hashtable[i]); + if (package_hashtable[i] != NULL) { + free_package(package_hashtable[i]); + } } for (i = 0; i < STATUS_HASH_PRIME; i++) { |